135151601 has 8 divisors (see below), whose sum is σ = 145713960. Its totient is φ = 124612992.

The previous prime is 135151561. The next prime is 135151609. The reversal of 135151601 is 106151531.

It can be written as a sum of positive squares in 4 ways, for example, as 34225 + 135117376 = 185^2 + 11624^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135151601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135151609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6935 + ... + 17843.

It is an arithmetic number, because the mean of its divisors is an integer number (18214245).

Almost surely, 2^135151601 is an apocalyptic number.

It is an amenable number.

135151601 is a deficient number, since it is larger than the sum of its proper divisors (10562359).

135151601 is a wasteful number, since it uses less digits than its factorization.

135151601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11875.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 135151601 is about 11625.4720764363. The cubic root of 135151601 is about 513.1847374005.

The spelling of 135151601 in words is "one hundred thirty-five million, one hundred fifty-one thousand, six hundred one".